Title

Binary frontal polymerization: A new method to produce simultaneous interpenetrating polymer networks (SINs)

Document Type

Article

Publication Date

1-30-1997

Department

Polymers and High Performance Materials

Abstract

We report a new method for the preparation of a simultaneous interpenetrating polymer network (SIN) using a thermal propagating front of two independent and noninterfering polymerization mechanisms. The system consists of the free radical crosslinking of triethylene glycol dimethacrylate (TGDMA) and the amine/BCl3 . amine curing of diglycidyl ether of bisphenol A (DGEBA). The front Velocity dependence on the percentage of each monomer shows a minimum at 45% TGDMA. Temperature profile measurements indicate that a single reaction front propagates. A colored opaque material is produced, but SEM and TEM analysis were inconclusive whether phase separation occurred. Samples as large as 5 cm in diameter were prepared with this method. We conclude that this method should be especially suited for preparing large samples of IPNs in which significant phase separation occurs. (C) 1997 John Wiley & Sons, Inc.

Publication Title

Journal of Polymer Science Part A: Polymer Chemistry

Volume

35

Issue

2

First Page

227

Last Page

230